using System;
using System.Data;
using System.Text;
using System.Data.SqlClient;

namespace Mtxfw.DAL
{
	/// <summary>
	/// 数据访问类:host
	/// </summary>
    public partial class host : Mtxfw.Utility.Myabstract
    {
        public host()
            : base("host")
        { }

       
        /// <summary>
        /// 得到一个对象实体
        /// </summary>
        public int GetId(string hostname)
        {

            StringBuilder strSql = new StringBuilder();
            strSql.Append("select  top 1 * from host ");
            strSql.Append(" where hostname=@hostname");
            SqlParameter[] parameters = {
					new SqlParameter("@hostname", SqlDbType.VarChar,50)};
            parameters[0].Value = hostname;
            int id = 0;
            DataSet ds = Mtxfw.Utility.SqlDbHelper_U.GetDataSet(strSql.ToString(), parameters);
            if (ds.Tables[0].Rows.Count > 0)
            {
                id = int.Parse(ds.Tables[0].Rows[0]["Id"].ToString());
            }
            return id;
        }
       
        /// <summary>
        /// 删除一条数据
        /// </summary>
        public bool Delete(int Id)
        {

            StringBuilder strSql = new StringBuilder();
            strSql.Append("delete from host ");
            strSql.Append(" where Id=@Id");
            SqlParameter[] parameters = {
					new SqlParameter("@Id", SqlDbType.Int,4)
};
            parameters[0].Value = Id;

            int rows = Mtxfw.Utility.SqlDbHelper_U.ExecuteCmd(strSql.ToString(), parameters);
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }
       


        /// <summary>
        /// 获得数据列表
        /// </summary>
        public DataSet GetList(string strWhere)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select * ");
            strSql.Append(" FROM host ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            return Mtxfw.Utility.SqlDbHelper_U.GetDataSet(strSql.ToString());
        }

        /// <summary>
        /// 获得前几行数据
        /// </summary>
        public DataSet GetList(int Top, string strWhere, string filedOrder)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select ");
            if (Top > 0)
            {
                strSql.Append(" top " + Top.ToString());
            }
            strSql.Append(" * ");
            strSql.Append(" FROM host ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            strSql.Append(" order by " + filedOrder);
            return Mtxfw.Utility.SqlDbHelper_U.GetDataSet(strSql.ToString());
        }

        
    }
}